Jon Cannon teaches medieval architectural history at the University of Bristol and elsewhere. He is the author of Cathedral : The Great English Cathedrals and the World that Made Them, and was the presenter of BBCtv's "How to Build a Cathedral" (2008). Beth Williamson is a Senior Lecturer in the Department of Historical Studies at the University of Bristol, where she specialises in medieval art and architecture.
She is the author of The Madonna of Humility, the first volume in this series.